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Balkans · about 39 km from Drvar

Bastašica (Drvar)

  • Max depth75 m
  • CertificationFull cave
  • Water temperature≈ 7–12 °Cestimated, no reports yet
  • SpecialExperienced divers

Diving and fills

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The dive

A spring with a passage of ~600 m, in which a shaft drops from -30 to -55 m; the deepest point is at -75 m. Water temperature and visibility: ask.

Profile and sections

A spring with a passage of ~600 m, in which a shaft drops from -30 to -55 m; the deepest point is at -75 m. Water temperature and visibility: ask.

Practical: the spring is remote, in the west of Bosnia and Herzegovina. Plan through the local club.

Depth and profile
A shaft from -30 to -55 m · max -75 m
Configuration
Full cave kit; beyond ~-40 m a deep dive with deco and trimix.
Who can dive where
  • CaveAt least Full cave
  • Whole caveConfigurations: Backmount / twinset / Sidemount / CCR
  • Whole caveGoes down to 75 m (trimix or deco may be needed) · doesn't decide who may dive
  • Whole caveExperienced divers only · doesn't decide who may dive
Experienced divers

This is how the planner decides who in your team may dive this cave. Rules your own trip adds (organizer, a mail, the AI) show with your trip.

How to get there

A spring by the village of Bastasi, south-east of Drvar. Access and any permit: ask the club in Mostar.

Plan your route ↗

Around Bastašica (Drvar)

FillsNo fill station known nearby
Where to sleepAround Drvar on Booking.com ↗

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Other sites2 within 56 km

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Sources, sharing and disclaimer

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Certification requirements, configurations and trimix depths are estimates for planning. Always check them locally and dive within your training. Compiled from the research of 27 Oct 2026 and information from CDC Vrelo (Oct 2026, with the 2026 price list) on diving Vrelo: metla.mk and republika.mk (the Vrelo record, 17 Oct 2026), InDEPTH "Drive and Dive in the Balkans", underwater-3d.com (Matka Vrelo 2025), Wikipedia (Matka Canyon, Blue Eye), the GUE Balkans Cave Exploration Project (July 2010), caverescue.eu and Thalassia Salentina (Kotor, 2005); for Bulgaria, Albania and Montenegro (Oct 2026) the Bulgarian Federation of Speleology's cave registry, 360mag, showcaves.com, X-Ray Mag, Divernet, National Geographic Polska, AKT, Wikipedia, taucher.net, the Czech Speleological Society, RSE, BTA and Pro Diving Montenegro; for Bihać (Nov 2026) Una Aquarius, Wikipedia and OpenStreetMap. Dutch travel advice for North Macedonia, Serbia, Bosnia and Herzegovina, Montenegro, Albania and Bulgaria checked on 27 Oct 2026 (all green). Pins from OpenStreetMap. ~ = estimate, ask = not confirmed. Rules change — check locally.